Ice-sawing device



H Ma 6, 1923. I 1,447,468

E. HARDING ICE SAWING DEVICE Fiied Nov. 50, 1921 s sheets-sheet 1 I Mar. 6, 1923.

1,447,468 E. HARDING ICE SAWING DEVICE Filed Nov. 50, 1921 5 sheets-sheet 2 a ay mum,

Mar. 6, 1923. 1,447,468

E. HARDING ICE SAWING DEVICE Filed Nov. 50, 1921 5 sheets-sheet 5 a mnwto'u Patented ar. 6, 1923.

mamas emcee ICE-SAWING DEVICE.

Application filed November 30, 1921. Serial No. 518,895.

To all whom it may concern: Be it known that I, EDWIN HARDING, a citizen of the United States, residing at Alexandria, in the Parish of Rapides and State of Louisiana, have invented certain .new and useful Improvements in Ice-Sawing Devices, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to sawing devices, particularly to those designed primarily for cutting blocks of ice, and has for its object the provision of a novel power driven circular saw device for cutting blocks of ice into small pieces of any desired dimensions for the retail trade whereby the pieces cut will be perfectly evenand smooth so as not only to have the proper weight but also to be attractive to theconsnmer.

An important object is the provision of a device of this character including a rigid supporting frame and a swinging frame carrying a circular saw, lever operated means being provided for moving the swinging frame to move the saw with respect to the ice, the saw being driven by a directly associated electric motor which is readily controllable by the operator to efl'ect starting and stopping.

Another object is the provision of a device of. this character in which the drive motor is mounted in a peculiar manner and is movable so as to effect tightening of the drive belt.

Yet another object is the provision ofa device of this character which ,is provided with bumper means for limiting. themovement of the swinging frame in-one direction and which is also equippedwith means for limiting movement in the other direction, in conjunction with shock absorbing or cush ioning mechanism which will operate to make the action smooth. v a y A A still further object is the provision of an ice guide structure with which associated a gauge which is adjustable for varying the size of the pieces cut so that they will have the desired weight.

An additional object is the provision of a device of this character whichwill be simple and inexpensive in manufacture'and installation, a great time and labor saver, eiiicient and durable inservice and a general improvementin theiart. y

With the above and other objects and advantages in View, the invention consists in the detailsof construction to be hereinafter more fully described and claimed, and illustrated in the accompanying drawings, in which Figure 1 is a front elevation of the device;

Figure 2 is a side elevation;

Figure 3 is across sectional view through the device. taken above the shock absorbing means;

Figure 4 is a guide structure;

Figure 5 is a vertical sectional view showin the construction of the ice guide; and

igure 6 is a sectional view through the ice gauge. I

eferring more particularly to the drawings, the letter designates a suitable base which may be the fioor of an ice house or which might be a platform or the like secured thereto, and at some point this base is formed with an opening or recess B for a purpose to be described. The most advantageous place in which the device may beused is near the delivery chute of an ice vault so that the ice may be cut and delivered by the one attendant having charge, thereby avoiding any necessity for the employment of additional help. It is, of course, though to be understood thatthe device is equally capable of use at any place where ice is to be cut.

In carrying out the construction of the de vice I provide a rigid frame which includes uprights 10 which in actual practice may be formed as sections of pipe of suitable size. At their lOWer ends these uprights 10 are provided with supporting feet 11 which are suitably bolted on to the floor or platform, and at their upper ends the uprights'carry castings 12 which are connected by a cross bar 13 which may also be formed as a pipe section. Secured to the castings 12 are inclined brace members 14 which have their lower endsprovided with bearing feet 15 which are secured to the floor or platform rearwardly of the feet 11.

The device further includes a movable frame which includes a plate 16 having a bearing 17 rotatably engaged upon the cross plan view showing the ice bar 13 and prevented from longitudinal movementtherealong by stop collars 18.

Secured to the lower end ofthe plate is a bar or pipe section 19' which has its lower end carrying a yoke '20 having its arms-provided with bearings 21 for a shaft 22 which has one end carrying a "pulley 23E 'and its other endcarrying a circular saw 24 of suitable diameter, held in place by the usual clamping structure illustratedszat 25.- saw 24toperates within the opening or recess B in the floor or platform. Slidably adjustably mounted I upon the plate 16 is an electric motor 26 ofthe moisture proof type and this motor has its shaft carryinga pulley 27 about which is trained. a. belt 28 which is in turn trained about the pulley 23 for driving he saw 24. Threaded through an extension 29 on the plate 16' is a set screw 30 which engages the base or the motor whereby to effect adjustment of the motor with respectto theplate 16 so that tightening of the belt 28 -n1aybe effected.-

Secured upon the floor'or plattorm is a bracket 31 upon which is pivoted,asshowu ata32, an operating lever 33 with which ispivotally Connected a link 3a ,whieh extends rearwardly and which is pivotally co nec'ted at 35 with the upper end or an arm '36 se cured upon one of a rock shaft 137 joiirnaled in suitable bearings 38 on the floor or platform. The other end ofthe shaft 37 carries an. arm 39 with which is pivotally connected a link 40 which is in turn pivotal ly connectedqwith .a suitable ear .on the rear side of ,the yoke 20. By 7 swin ran the lever 33 in one direction or.the other it will be ppa n th th ingi g. f am arry g; esav ill e esp ndine y m d ure the cross bar 13 ea pivot. 7

Any suitab e w tch de s not ho e maybeprovided for controlling the electric: motor. The details of construction of such. a control switch form no part otthepresent invention and are d It is preferable to provide atrough or channel shapedguard 42 which extendsover the saw 24: and which is carriedby. arms 43 which have their-ends secured between ears formed on clamping members. 454: engaged upon the support l9n- Ials'o providean. arm 45which is secured between these clamping members and which is engageable witha bar 46 extending transversely. between the brace elementsle; the purpose. otthis bumper Structure b i g li it t re ward w ss ing movement .of-thernovabl frame. .1 also provide-a flexible member, A 14.7 which hassone end connected w 4:6, as indicated' art-AS, and. which.

other end connected with onegof the clamping members egh'as indicated at #9.; the fpi.irpose-of this chain being to-limit movement oftl1e:sw@inging-. frame forwardly;

Ii'also provide a shock absorber structure shwi z-r vnted mamas-a 5 O Jth t pof ar 4e" d' whieh f d sjagci ilater. who I? p, t 52 arrie a, 1 ten-rod; 53: whichJ a 99 m e it 'w s ppbrt 1 9-.

otall'y The lVhile it is not essential yet against the gauge. therefore not illustrated.

and unifo suitable reliefivalve orrhole 55-for perm1t ting the outlet and inlet of air.

I alsoprovide the floor A with an ice guide which-comprises upright plate members 56 between which the saw 24 is designed to pass and these plate members are suitably secured by any preferred means. I also provide a" similar upright plate member 57 which terminates at one side of the pit or recess B. It is designed that-the blocks of ice'to be out should he slid along the floor between the plate 57 and the adjacent plate 56 and itis preferable that these two plates have flaring-ends 58 whereby to facilitate the entrance of the block therebetweeni I prefer to employ a gauge which is mounted upon the floor A at the end of the plate 56 most remote from the entrance of the guideway. 'and'this' gauge includes an" unpright' bracket 59 secured upon the floor as by bolts or the likefandhaving associated therewith a-rig'ht angularly shaped plate member 60 which carries two bolts 61 freely movable through suitable holes in the bracket 59 and carrying clamping nuts 62 whichare engaged against opposite facesof the bracket. Byproperly adjusting the nuts 62 it will be apparent that th'e'plateniember 60 Inay be disposed different distances from the bracket for constituting a stop against which is engaged be cut is pulled or pushed along the floor or platforminto the guid eway and is engaged The block will then be travel of the saw disposed in the "path of Assumy vhen the movable frame is swung.

that the saw is rotating, the operator grasps the lever 33 and pullsit forwardly 1 whereupon the swinging frame will be moved forwardlyowlng 'to the'link and lever conneetionsdescribed and shownyto bring the saw" into engagement with the block of ice i itl ld ijllfi will naturally result in cutting the ice. this way it will; be seen that the block may becut into'any number of pieces erdesired ize, the pieces being smoothly rmly' cutso as to avoid waste and present the cut pieces in a manner attractive *Thesizedf the pieces may It is to be, varied adjusting the gauge.

bei noted that there is'no chipping or waste such 'a's 'isoccasioned by'the use of the ordinary ice picks and that the pieces may be out accurately so that they will have the le i edj is 1 5' r I fWhen. 'heffswinging frameis moved foras 'abovefdescribed; to 'efiect the vcuttlng-action is appare t that thelpiston 52 vent-intestate teisgg treagm' tooqu'ickly into engagement with the block of ice and this will prevent injury to the saw. The forward movement of the frame is limited by the action of the chain 47, while the rearward movement is limited by the engagement of the bumper arm 45 with the bumper bar 46'. The guard 42 is simply a safety device for preventing ice from falling on to the saw and also tending to prevent the operator from coming in contact with the saw during use of the device.

From the foregoing description and a study of the drawings it will be manifest that this machine will work a great saving in time and labor and that it should recommend itself for use where quick and accurate service is a desirable quality. Owing to the simplicity of the construction and the fewness of the parts it is apparent that there is nothing t get out of order and owing to the substantial construction it is apparent that the device should possess great durability and satisfactorily perform all the functions for which it is intended.

While I have shown and described the preferred embodiment of the invention it is of course to be readily understood that I reserve the right to make such changes in the form, construction and arrangement of parts as will not depart from the spirit of the in vention or the scope of the sub-joined claim.

Having thus described my invention, I claim:

An ice cutting device comprising an upstanding stationary frame, a swinging frame pivotally mounted at the top of the stationary frame, a shaft journaled in said swinging frame, a circular saw carried by said shaft, means for driving said shaft, means for moving said swinging frame, and a cushioning device for controlling the speed of movement of the swinging frame comprising a cylinder pivotally connected with the stationary frame and a piston operating therein and pivotally connected with the swinging frame.

In testimony whereof I hereunto aflix my signature.

EDWIN HARDING. 

